Stove-lock.



A. L. STEWART.

STOVE LOCK.

APPLICATION FILED APR.15| 1912.

1 ,6@, 1 "?5 u Patented June 4, 1918.

INVENTOR WITNESSES mmmusv locked.

ANNIE n. STEWART, or SOUTH AUBURN, NEBRASKA.

Application filed April 16, 1917. Serial 1T0. 162,368.

To all whom it may concern:

Be it known that I, ANNIE L. STEWART, a citizen of the United States, residing at South Auburn, in the county of Nemaha and State of Nebraska, have invented certain new and useful Improvements in Stove- Locks, of which the following is a specification.

This invention relates to stoves, and it more specifically relates to a stove lock whereby the door or doors of a stove may be The primary object of the inventionisto provide a lock of this character for preventing access to the interior of the stove by children or other unauthorized persons, and thereby to obviate the danger of fire which so often results from children being left alone in a house or room heated bya stove to the interior of which the children have access.

vide a device of this character which pre cludes access to the interior of the stove, unless a suitable key available.

Other objects and advantages will become apparent to persons who read the following detail description and appended claim in connection with the accompanying drawings in which:

Figure 1 represents a conventional form of heating stove having its top portion broken away;

Fig. 2 is an enlarged fragmental detail view illustrating the inner side of the stove door and a fragment of the wall of the stove, the pivotally mounted looking or chocking bar being shown in full lines in its operative position, and in dotted lines in its inoperative position;

Fig. 3 is a view similar to Fig. 2, the difference consisting in the fact that in Fig. 3 the chocking bar is shown both in full lines and in dotted lines in its inoperative posi tion, while the main locking bar is shown in its locking position in dotted lines, and in its non-locking position in full lines; and,

Fig. A is a horizontal sectional View on the line 1-4 of Fig. 1.

Referring more specifically to the mecha nism illustrated by these drawings. in which similar reference characters correspond with similar parts throughout the several views, the body of the stove is designated by the reference character 10, the lower door 11,

Specification of Letters Patent.

or opening device is STOVE-LOCK.

Patented June 4, 191s.

and the upper door 12. It may be assumed that the lower door is mounted on a portion of the stove which is rectangular in horizontal section, and therefore, that the door 11 is rectilinear; whereas the door 12 is arouate or concavo convex, as illustrated in Fig. 4. The locking mechanism of the lower door may be assumed to be substantially the same as that of the upper door,and hence, a description of the upper door and its looking mechanism will suiiice.

The door '12 is mounted to swing. on hinges 13 of ordinary construction, and a knob 14, also of ordinary construction may be employed for opening the door when it is unlocked. On the inner wall of the body 10 of a main locking bar 16, as illustrated in Another object ofthe invention is to prostraps are formed on or secured to the inner surface of the door, approximately at opposite edges of the latter, and these straps constitute bearings in which the lock-bar 16 is slidable horizontally. A supporting bracket is secured to the inner face of the door and comprises a horizontal shoulder or rest 19 and a vertically disposed flange or keeper 20. Upon the rest 19 is normally seated one end of the chocking bar 21, the other end of said bar being supported by a stud or stub shaft 22, one end of which stud or shaft is secured to the member 21. The door 12 is provided with a horizontal slot 23 through which the stud 22 extends, and the latter is provided with a rectangular key-engagingend 24. A collar 25 is secured on the stud 22 and coiiperates with a head 26 for securing the members 16 and 21 in juxtaposed and inseparable relation.

When the parts are in their operative or looking position, as illustrated in Figs. 2 and A, it is obvious that the locking bar cannot be slid leftward because of the contact of the stud 22 against the left-end wall of the slot 23; and it is also obvious that the looking bar cannot be slid rightward because of the contact of the chocking bar 21 with the too hot to be manipulated by the finger'sof an operator; and therefore, a suitable key or [Wrench must be employed for rotating-the stud 22, swinging the checking bar Upward, and sliding the stud 22 to the right-hand end of theslot 23, so; as to cause the lefthand end, of the lockillgfbar 16, to clear the \v allofthe body 10. NVhen the device has been operated as described in the foregoing, the stove door may beopened either by the key on the stud'22, or by ordinary means.

From the foregoing it is seen that I have provided aldevice \vlnch renders it safe for enld'ren to leeleft alone in a house w th stoves having fire therein, and that thekey or \vreneh' for operating this look may be placed out of reach of the children: and used only by authorized persons.

Although ,Ihave shown this device as appliedto a heating stove, it is not intended to limit my invention to this specific application; and moreover, I do, not limit my invention to'the enact etails of construction disclosed in these drawings, but various m nor changes 1n, deta l of constructlon,

proportion and arrangement of parts may be made Within the scope of the appended claim and ithout sacrificing any of the advantages of invention.

What I claim as my invention is:

In combination With a part having an opening and a door for closing the said opening, keepers on the inner faceof the door near opposite edges thereof, said door having aslotin line With the keepers, a locking bar slidable in thekeepers, and having its ends adapted to project and engage the part having the door opening at opposite sides of the latter, a chockingbar, a

key-operated stud secured to the ehocking bar and journaled in the locking bar and operable the slot of the door, said chocking bar being engageable With one of the keepers to limit, the movement of the locking bar in one direction, the stud limiting the movement ,olt', the looking bar in the opposite directlon by engaging a closed end of the slot inthe door, and akeeper to engage and hold thechocking bar'in operative position. In testimony. whereof I my signature in presence of two Witnesses.

ANNIE L; STEWART;

Witnesses:

F. ALSKTEWART, I. L. QUIAT.

Cbiiies of'tli ispfai:e.1i1: may he obtained, for five cents e'ahj, addressing mewcbmnfisibnr ofl at ents,

' washin tonflnc." 

